package com.wj.config;

import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.wj.pojo.MailConstants;
import com.wj.pojo.MailLog;
import com.wj.service.IMailLogService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.amqp.core.Binding;
import org.springframework.amqp.core.BindingBuilder;
import org.springframework.amqp.core.DirectExchange;
import org.springframework.amqp.core.Queue;
import org.springframework.amqp.rabbit.connection.CachingConnectionFactory;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

/**
 * @Author wj
 * @Date 2022/7/22 17:16
 * @Description: TODO
 * @Version 1.0
 */
@Configuration
public class RabbitMQConfig {

    public static final Logger logger = LoggerFactory.getLogger(RabbitMQConfig.class);
    @Autowired
    private CachingConnectionFactory cachingConnectionFactory;
    @Autowired
    private IMailLogService mailLogService;

    @Bean
    public RabbitTemplate rabbitTemplate(){
        RabbitTemplate rabbitTemplate = new RabbitTemplate(cachingConnectionFactory);
        /**
         * 消息确认回调,确认消息是否到达broker
         * data:消息唯一标识
         * ack：确认结果
         * cause：失败原因
         */
        rabbitTemplate.setConfirmCallback(((correlationData, b, s) -> {
            String msgID = correlationData.getId();
            if (b){
                logger.info("{}======》消息发送成功",msgID);
                mailLogService.update(new UpdateWrapper<MailLog>().set("status",MailConstants.SUCCESS)
                        .eq("msgId",msgID));
            }else {
                logger.info("{}======》消息发送失败",msgID);
            }
        }));

        /**
         * 消息失败回调，比如router不到queue时回调
         * msg:消息主题
         * repCode:响应码
         * repText:响应描述
         * exchange:交换机
         * routingKey:路由键
         */
        rabbitTemplate.setReturnsCallback(returnedMessage -> {
            logger.info("{}======》消息发送到队列时失败",returnedMessage.getMessage().getBody());
        });

        return rabbitTemplate;
    }

    @Bean
    public Queue queue(){
        return new Queue(MailConstants.MAIL_QUEUE_NAME);
    }

    @Bean
    public DirectExchange directExchange(){
        return new DirectExchange(MailConstants.MAIL_EXCHANGE_NAME);
    }

    @Bean
    public Binding binding(){
        return BindingBuilder.bind(queue()).to(directExchange()).with(MailConstants.MAIL_ROUTING_KEY_NAME);
    }

}
